Science fiction fans with a fondness for the gooey mess that became “The Blob” — a B movie that also marked the debut of actor Steve McQueen — will celebrate the iconic flick this weekend.

The Colonial Theater, seen in a scene with hundreds of panicked fans racing out its doors, will host the 14th annual BlobFest, “Bug Out BlobFest!,” on Friday, Saturday and Sunday.

BlobFest is a kitschy, family-friendly event saluting the 1958 classic sci-fi movie The Blob which was filmed in and around Phoenixville.

“Bug Out BlobFest, which will celebrate the best of the buggy B sci-fi films of the 1950s, is sponsored by Staybridge Suites Royersford, the official hotel of BlobFest.

BlobFest will welcome special guest Keith Almoney to the festivities all weekend. Keith played little Danny Martin in the film. Just 5-years-old when the film was made, he has vivid memories of his time on set and will be sharing them with BlobFest attendees during a special presentation.

The event begins Friday, July 12, with a stage show and Run Out Reenactment at the theater hosted by BlobFest’s own Dr. Frank N. Stone. Joining him will be horror host Mr. Lobo of Cinema Insomnia as guest co-host.

Doors open at 7 p.m. for this weird and wacky night that features music and mayhem, the Shorty Awards recognizing the winners of BlobFest’s seventh annual amateur short film contest, a screening of the winning films, appearances by Ghoul A-Go-Go and Patient Creature characters, plus the “real” Blob and its caretaker, Wes Shank.