The SoaSE: Rebellion logo on its box art has the 'Rebellion' text far larger than the rest, while Rebellion's boxes always also, surprise surprise, say that in big letters. Rebellion's argument in the complaint (via GameSpot) is slightly more nuanced than 'they use the same word,' but only slightly. The problem, Rebellion says in documents recently dug up, is that people might mistakenly think it's behind the game.
Sniper Elite V2 and Alien versus Predator maker Rebellion Developments is engaged in a little legal scrap with Sins of a Solar Empire: Rebellion developer Ironclad Games and its publisher Stardock over the space 'em up's name.