Now here is something we bet Jennifer Lopez does not have a backup plan for! Friday’s thrice-delayed sperm-donation comedy The Back-Up Plan — starring J.Lo as an artificially inseminated woman who meets the perfect guy during her first trimester — has leaked online in high quality (it was allegedly ripped from a DVD screener) and is being freely traded on BitTorrent sites. This is yet another setback for Lopez, whose movie career needed a boost this weekend following the recent death of her music one. Last year’s high-profile leak of X-Men Origins: Wolverine didn’t stop that film from making $373 million worldwide, but that was an action movie that demanded to be seen on a big screen. Maybe it’s not too late to convert Back-Up Plan to 3-D?