Harrah's Entertainment is making moves to buy the 2,496-room Planet Hollywood Resort & Casino on the Las Vegas Strip. A subsidiary of Harrah's filed applications with Nevada's Gaming Control Board last week to take over the property. An investigation by the board likely will take a few months, according to sources there, before a recommendation is made to the state's Gaming Control Commission. According to intracompany e-mails cited by the Las Vegas Review-Journal, Harrah's hopes to "own and manage the property," while Planet Hollywood founder and CEO Robert Earl would continue in his role and work with the Harrah's team. Neither Harrah's nor Planet Hollywood returned calls Tuesday to confirm the talks.