Simply Einstein question

Okay. I might be picking nits here, but I just read something rather odd on page 4: "Like Bill Pullman's character in Groundhog Day". This gives me pause about the author's credibility. Can I trust that Wolfson (or his editor) is providing accurate and legitimate information if he doesn't get an actor's name correct? I mean, it takes less than 30 seconds to verify something like this. Can someone with a physics/cosmology background vouch for Wolfson?