Entry No. 18 — the Philadelphia file — filed under: midnight movie history
Colonial Theatre — Blobfest
Steve McQueen's 1958 creature feature The Blob has a scene of the monster oozing through this exact theater's projection booth, and since 2000 the town has restaged the moment every July as Blobfest: an immersive midnight-style screening followed by a costumed mob literally running out the theater's front doors screaming, occasionally alongside a surviving original cast member from the 1958 shoot.
The story
In 1958, a young Steve McQueen starred in a low-budget creature feature where a gelatinous red mass from space terrorized a small town. The film’s climax was shot inside Phoenixville’s Colonial Theatre, specifically the moment the monster oozes out of the projection booth while terrorized moviegoers run screaming into Bridge Street. Most small towns would let an obscure piece of B-movie trivia fade into the archive. Phoenixville turned it into a high-camp annual pilgrimage.
Since 2000, the theater has hosted Blobfest every July to lean completely into that piece of drive-in film history. The centerpiece is the Friday night reenactment: an immersive screening of *The Blob* where, right on cue, hundreds of audience members—many in costume—sprint out through the theater’s front doors screaming at the top of their lungs into a crowd of waiting cameras.
What started as a quiet homage now shuts down Bridge Street for three days, drawing around 20,000 cult cinema fans, retro sci-fi obsessives, and vintage horror lovers. Over the years, the festival has even pulled in surviving cast members from the original 1958 shoot, keeping the mid-century creature feature alive inside the exact auditorium where it was filmed.
What it's like
If you go on Friday night, expect packed sidewalks along Bridge Street long before showtime. Inside the historic single-screen theater, the energy feels like a midnight rocky horror show mixed with a vintage sci-fi convention. The crowd is loud, enthusiastic, and ready to sprint; when the cue hits during the film, you will be part of a human stampede bursting through the glass doors into the night air. The street outside boils over with food vendors, costumed monsters, and vintage movie stalls, but keep in mind that official theater tickets for the Run-Out sell out well in advance.
The move: Buy a ticket to the Friday immersive screening, then actually run out the theater's front doors mid-film with the crowd during the Run-Out reenactment, before hitting the street fair outside.
- 📍 Phoenixville
- 💸 $
- ⚡ Low-key
- 🌗 Outdoors
Where: 227 Bridge St, Phoenixville, PA 19460
Hours: Added 2026-07-19 — confirm current hours before you go.
⚠ Seasonal or scheduled — always check before you go.
Pair it with
- Pennhurst Asylum — Trade 1950s B-movie horror camp for heavy real-world history at the former Pennhurst campus just four and a half miles up the road.
- Wharton Esherick Museum — Balance out low-budget creature features with a trip to the hand-sculpted, organic wooden home studio of artist Wharton Esherick less than four miles away.
- Duffy's Cut Memorial — Head seven miles south to visit another somber roadside historical marker marking the mass grave of 57 Irish railroad workers.
Good to know
When does Blobfest happen?
It takes place over a three-day weekend every July at the Colonial Theatre in Phoenixville.
How do I take part in the Run-Out reenactment?
You need to secure a ticket to the Friday night immersive screening at the Colonial Theatre. During the movie, the audience is prompted to run screaming out the front doors onto Bridge Street.
Can I attend if I don't get a theater ticket?
Yes. While theater screenings sell out, the weekend street festival along Bridge Street is open to the public and draws thousands of visitors for vendors, live events, and watching the Friday night Run-Out from the sidewalk.
Is the Colonial Theatre open the rest of the year?
Yes, the Colonial Theatre operates year-round as an independent movie house, but the Blobfest event and street fair occur only once a year in July.
Plan a visit & invite your people →
Further reading: Official site · Wikipedia · phillyvoice.com · whyy.org · metrophiladelphia.com
last checked: 2026-07-19