Last month, we reported that actor Joaquin Phoenix was in negotiations with Marvel Studios to play the title role in Doctor Strange, with a new report emerging this week that the actor is close to finalizing his deal. While he still hasn't signed on the dotted line yet, Badass Digest has a new report about why the negotiations are taking so long.When we spoke to Marvel Studios president Kevin Feige last month, he revealed that they are "close" to casting Doctor Strange, but he also cautioned that an announcement was not "imminent." This new report reveals that Marvel was hoping to bring Joaquin Phoenix onto the Comic-Con stage to announce his casting, but the deal wasn't cemented at the time.