Wall Street’s interest in non-fungible tokens (NFTs) is rapidly heating up, with Cinedigm Corp. (CIDM) popping in premarket trading Thursday and a start-up setting standards for NFT royalties winning backing from groups like the Winklevoss twins’ Gemini crypto exchange.Cinedigm rose more than 25% in premarket trading after disclosing in a regulatory filing last night that it will be developing NFT products. The stock had already gained 21% the previous two days on speculation about entering the NFT market.However, Funko Inc. (FNKO), another company getting into NFTs, was down some 2% at $18.77 shortly after 9 a.m. ET in premarket trading after gaining 16.6% over the past two days. FNKO traded as high as $24.72 intraday at one point Wednesday, up 49.8% from Monday’s close.Dolphin Entertainment, which shot up 236% on Tuesday and another 4.5% on Wednesday on news that it was setting up an NFT division, was likewise giving back 18% in premarket