If you’re pretending to be British and celebrating Guy Fawkes Day, you might as well keep up the charade by checking out the new trailer for Sherlock Holmes, starring Robert Downey, Jr. and Jude Law.

In what can only seem to be complete bad-ass-ness (smart jokes, narrated three-step guide to knocking someone out, Rachel McAdams, etc.), the film appears to have a good chance at holding its own during this Christmas Day’s battlefield for the box office.

What secret weapon does director Guy Ritchie have in store for the action-packed thriller? He calls it a family movie!

“That’s really the idea—for it to be a family movie. It has dark moments, but it’s accessible. I’m a dad, and I want to go to my movies with kids as well.”

Family movie or not, the film looks like a good time; let’s hope this doesn’t prove to be another RocknRolla.