Salhab's film Chinese Ink (2017) was commissioned for Sharjah Biennial 13, and he has directed six feature films: The Valley (2014), The Mountain (2011), 1958 (2009), The Last Man (2006), Terra Incognita (2002) and Beyrouth Fantôme (1998). He has also made 'essays' and video installations, including Son Image (2016), Everybody knows this is nowhere (2012), Le massacre des innocents (2010), (Posthumous) (2007), Brève recontre avec Jean Luc Godard (2005), Narcisse Perdu (2004), My living body, my dead body (2003) and La Rose de personne (2000). He co-directed Le voyage immobile (2018) with Mohamed Soueid, collaborated with Akram Zaatari and Mohamed Soueid on the three-part Baalbeck (2000) and co-directed Of Seduction (1999) with Nesrine Khodr.
His films have been selected for international film festivals in Berlin, Cannes, Marseille, Locarno, Tribeca and Toronto, among others. He was a resident in the DAAD Artists-in-Berlin Programme (2016). His films have been honoured by La Cinémathèque du Québec (2018), La Rochelle International Film Festival (2010) and JC Carthage (2010). In addition to his work in filmmaking, he has published articles in magazines and the book Fragments du Livre du Naufrage (2012). He is also a film instructor at various universities and other institutions.