The synopsis for Rampage here:
"The boredom of small town life is eating Bill Williamson alive. Feeling constrained and claustrophobic in the meaningless drudgery of everyday life and helpless against overwhelming global dissolution, Bill (Brendan Fletcher) begins a descent into madness. His shockingly violent plan will shake the very foundations of society by painting the streets red with blood" (Dread).
Release Date: June 1st (DVD).
Director/writer: Uwe Boll.
Cast: Brendan Fletcher, Shaun Sipos, Lynda Boyd, Robert Clarke, Matt Frewer, Katey Grace, Brent Hodge, Katharine Isabelle, Michael Paré, Malcolm Stewart and Pale Christian Thomas.
Hang in there for the full trailer or move ahead to the one minute mark:
Rampage at Dread Central
Rampage at Bloody Disgusting