Mammoth, as it happens, was actually about a zombie alien-possessed thawed mammoth going on a rampage in a sleepy Louisiana town with Summer Glau. And it was utterly charming. Vincent Ventresca plays the lead (a museum curator) with an engaging sort of David Byrne/Bill Irwin chicken-awkwardness; his father, Tom Skerritt, drops smartly appropriate B-movie references left and right; Summer Glau gets to play the "typical" teenage daughter who nevertheless quotes the Vietnamese Joan of Arc in moments of crisis. For a low-budget romp, Mammoth offered just the right blend of self-aware mockery, bad puns, confounding of expectations, and happy old-person sex. Much much more fun than I expected; it comes from the Attack of the Killer Tomatoes/Critters branch of the schlock family tree.
Frank: "Can I be frank?"
Agent Powers: "You are Frank."
Frank: "...I know."
Frank: "Can I be frank?"
Agent Powers: "You are Frank."
Frank: "...I know."