The invention discloses a bullet screen play method, a bullet screen play device and a bullet screen play system in a cinema. The method comprises the steps as follows: generating a bullet screen information input interface; receiving bullet screen information input by a user in the bullet screen information input interface; and transmitting the bullet screen information to a server via a connection established with the server. Compared with the condition that user comments could not be shared in time in a process of viewing film in the prior art, the method, the device and the system of the invention could enable the audiences to comment at any time in the process of viewing the film and display the comments on a screen after being processed by a server and a bullet screen player so as to provide instant comment share for the audience and improve the sharing effect.