AUSTIN, Texas--(BUSINESS WIRE)--Fitch Ratings has assigned a 'B/RR5' rating to AMC Entertainment Inc.'s (AMC) $600 million senior subordinated note issuance due 2025 in a private offering. AMC's Issuer Default Rating (IDR) is currently rated 'B+'. The Rating Outlook in Stable. A full list of rating actions follows at the end of this release. AMC announced last week its plans to commence a cash tender offer to redeem all of its outstanding $600 million 9.75% senior subordinated notes due 2020. A