Tom Cruise Katie Holmes Scientologists Mission Impossible Topo Gun Dawson's Creek
Tom Cruise Katie Holmes Scientologists Mission Impossible Topo Gun Dawson's Creek

Tom Cruise and Katie Holmes split up yesterday -- just for the day! While Tom was running errands with a bodyguard/chauffeur on Sunset Blvd., Katie was at the Scientology Celebrity Center most of the day.

Katie's been visiting the Scientology headquarters a lot recently -- driving herself to and from the Center, spending hours on end inside. In fact, Katie was at the church today for almost five hours! She arrived before noon and left around 4 pm.

What's she doing in there, you might ask? Well one X17er is guessing she's got a bun in the oven and is getting some prenatal treatments or counseling. She still looks pretty skinny in our last shots of her at the Center (Click Here to see that gallery) ... what do YOU think's up with all these visits?