Say it quietly, but although Tom Cruise is one of the longest-lasting and most successful Hollywood stars of all time, there's some evidence out there which suggests he might be a little bit odd. We all know how much he loved his ex-wife Katie Holmes - because he jumped up and down on a sofa on the Oprah Winfrey show while shouting about it - and that might explain why he went so many extra miles to take care of their baby.
While Holmes was pregnant, Cruise was very interested in checking how their progeny was developing. Simply attending check-ups with his doctor wasn't sufficient for him; he wanted to be able to see how it was growing at any given moment on any given day. To that end, he bought a sonogram machine for their home at a cost of something like $200,000.