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The Complete Guide to Blobfest
Festival Guide · updated 2026-07-18
Why Phoenixville has a Blob festival
In 1958, a low-budget sci-fi film called The Blob — Steve McQueen's first starring role — shot its most famous scene inside Phoenixville's Colonial Theatre: panicked moviegoers bursting out of the theatre doors to escape the man-eating goo. The Colonial, open since 1903 and rescued by a nonprofit in the late 1990s, leaned into its cult-movie fame, and in 2000 the first Blobfest was born. It has run every July since, taking over the theatre and downtown for a full weekend.
The Run-Out: the main event
The heart of Blobfest is the Run-Out — a live re-creation of that 1958 scene, with a few hundred costumed fans screaming their way out of the Colonial's doors while a crowd of thousands watches from Bridge Street. Only about 350 Run-Out tickets exist and they have sold out within minutes in recent years.
Ticket tip: follow the
Colonial's Blobfest page and social accounts for the on-sale date, and be online the minute sales open. Watching from the street is free and almost as fun.
What happens each day
- Friday night — opening festivities at the Colonial: the costume contest, the scream contest, and the Run-Out itself, followed by a screening of The Blob.
- Saturday — the street fair takes over Bridge Street with vendors and entertainment, plus screenings, a short-film contest, and family activities all day. Each year carries a theme (2026 was "Cirque du Blobfest").
- Sunday — the RUNegades-hosted Blobfest 5K, 10K, Half Marathon and Kids Fun Run, with proceeds supporting the nonprofit theatre.
Practical tips
- Downtown parking fills fast on Blobfest Saturday — arrive early or park a few blocks out and walk.
- Screening and event tickets (beyond the free street fair) go quickly; book ahead on the Colonial's site.
- Costumes are welcome everywhere, not just the contest.
- Make a night of it: Bridge Street's restaurants and breweries are steps from the theatre — several are BYOB (see our BYOB guide).
When is the next Blobfest?
Blobfest lands on the second weekend of July. The next one is July 9–11, 2027. Check the LocalSpot events calendar as the date approaches — every Blobfest event shows up there as soon as the Colonial announces it.