Is it acting if you go through an entire movie without saying anything? (Oh yeah, silent movies – I forgot.) Cuba Gooding Jr. plays a mute in “Lightning Jack,” a 1994 western starring Paul Hogan. Hogan also wrote the script, which explains why a gunslinging Crocodile Dundee has a mute sidekick – more lines for Hogan. The plot is actually kind of interesting, and Gooding does well given the restrictions on his character. Hogan, however, loves himself too much to play a murderous bank robber, so he sprinkles in just enough wincingly self-deprecating slapstick to make himself (but not me) feel better.