Game cinematics, consisting of filmmaking techniques, cutscenes, and animations, often play an essential role in the player's emotional attachment and relatedness with game storytelling. While extensive research has been carried out in game storytelling and design, very little attention has been paid to the role of cinematics in the gameplay experience. Using qualitative in-depth interviews with 16 scholars and practitioners in game experience and cinematics, this paper reports on recommended practices for designing game cinematics. A semi-structured interview was employed, and content analysis was performed. Although the interviewee's perspective on the use of cinematics in storytelling was not consensual, its use to set the game scene and progress in the narrative is generally recognized. The recommendations for game designers to use game cinematics include balancing narrative and cinematics goals; ensuring its coherence; considering its length and making it skippable, among others.