The poster for “Send Help” advertises the film as “from the director of ‘The Evil Dead’ and ‘Drag Me to Hell’” — notably not “Spider-Man” or its two sequels. No, the kind of Sam Raimi film you’re getting here is irreverent, silly and very bloody; a character study that also features incredibly goofy scares. Written by Damian Shannon and Mark Swift, “Send Help” is a gonzo survivalist riff that works as well as it does because it features two incredibly game actors that surf the wave of Raimi’s tonal madness with a blend of absolute glee and carefully honed skill. Nothing’s perfect, but “Send Help” is a blast nevertheless. (“Send Help” contains strong/bloody violence and language)‘SEND HELP’Rated R. At the AMC Boston Common, Causeway, South Bay Center, Alamo Drafthouse Seaport, Landmark Kendall Square and suburban theaters.