DreamWorks' 'Dog Man,' an animated adaptation of Dav Pilkey's hit book series, is opening on top of the box office.

Dog Man”—starring the voices of Pete Davidson, Lil Rel Howery and Ricky Gervais—is scurrying to a No. 1 debut at this weekend’s box office.

Dog Man is providing some life to the box office this weekend with what’s now looking like a $35.3M opening. That’s the second biggest opening for a January animated title of all-time after DreamWorks ...