Editing room crewmember responsible for providing any and all required logistical assistance to the editor . Duties vary, depending on whether the assistant is working with a picture or sound editor and whether the show is being edited on film or on a non-linear editing system. On a film-edited show, assistant picture editors will, during production: liase with the film lab and sound transfer facility regarding the processing of dailies; leader, sync and edgecode the dailies rolls; coordinate and take notes during dailies screenings; organize and maintain camera reports, sound reports, script notes, and lined script pages from the set, as well as lab reports and sound transfer reports; log all dailies footage; and reorganize footage for editing, if necessary. Ongoing, and during post-production, they will: reconstitute trims; locate and pull trims requested by the editor; check sync, clean, measure, re-splice, and add change-over marks to cut reels; coordinate screenings of cut work; take notes during screenings. Once the sound department begins work, the assistants produce change sheets detailing each day's changes to the workprint and production track and send them, along with any necessary duplicate trims, to the sound department. Assistants may be permitted by the editor to do some creative work, such as commenting on the editor's work; cutting temporary sound effects and music into the track; and sometimes even editing scenes. After picture lock, the assistant: oversees the creation of optical effects such as fades, dissolves, etc. and cuts them into the workprint; continues to work with the sound department as necessary; and in some cases oversees the final stages of post-production, all the way through sound mix, negative conforming, and the production of final prints. The assistant editor chain of command consists of the First Assistant Editor , who bears the most responsibility for the smooth performance of the assistant team; the Second Assistant Editor ; and the Apprentice Editor .