“Tusk,” Kevin Smith’s new horror-comedy about a man who is literally transformed into a walrus, is a different animal of a movie in more ways than one. Smith delivers on the thrills and chills of full-on horror and masterfully interlaces humor in unexpected ways. One of the strangest treats will come in the third act with Johnny Depp, unrecognizable as detective Guy Lapointe. Depp’s brilliantly odd performance adds to the weirdness of an already weird but truly worthy cinematic voyage. When he’s on the screen, you know that someone of a high caliber is playing with the ooey gooey elements of zany humor. Credit Mr. Depp and credit Mr. Smith for that.