McCall's installations – like the one above at Hangar Bicocca, Milan (2009) – use film and DVD projections not to create pictures but to craft ephemeral sculpture with shards of light, standing out against the gloom like a celestial visitation. Be illuminated at Ambika P3, NW1, until 27 March and catch his Works On Paper at Sprüth Magers, W1, from Tuesday until the 26
Photograph: Giulio Buono
Starchitect picks up where Locke's 2002 work Cardboard Palace left off, dividing ArtSway into grottoes with a starry firmament of cardboard trellises framing ornate reworkings of tat-shop finds. Get to along to the gallery in Sway, Hampshire, by 3 April Photograph: PR
You enter to a soundtrack of the Blue Orchids song A Year With No Head. On the wall a large-scale drawing is scrawled with shorthand jottings like so many half-forgotten memories. Juliette Blightman deals in deceptive banalities that, through meticulously selective stage management, conjure moments of reverie on the passage of time. Prepare to ruminate at International Project Space until 2 April Photograph: PR
The exhibition's lovely title – Airports for the Lights, Shadows and Particles – is taken from a comment by John Cage on Robert Rauschenberg's white paintings, concerning the works' receptive sensitivity to their surroundings. Her evocative images, often ironically contained within commercial lightboxes, could be taken as a series of celebrations of Proustian memory. See for yourself at Bluecoat gallery until 1 May Photograph: PR
Through film documentaries, scupltures and innumerable drawings executed by her untrained collaborators, the artist exposes and helps to tentatively dissolve the social inhibitions that tend to plague our post-industrial environments. Sedá's sense of mischief converts what could easily become a community art project into something more affecting. Head to the Millennium gallery from Wednesday until 30 May Photograph: PR
While recession-era bleakness reigns, this show finds optimism in the dark days of 1970s New York. Back then, the city was on the brink of financial ruin, with industry imploding and streets getting meaner – so a trio of youthful mavericks made the most of cheap rents and zero financial pressure to fire up a scene. Catch pieces such as the Trisha Brown diptych Woman Walking Down a Ladder (1973) at the Barbican art gallery, EC2, from Thursday to 22 May Photograph: PR
Photograph: Gordon Matta-Clark
This treat of a show focuses on what would prove the sculptor, painter, performer and joker's final works, made in the 18 months before he died in a motorcycle accident. Constantly questioning what sculpture is, his creations include a giant fake-fur spider (La vedova blu, 1968, above), a fisherman's net made with braided steel wool and a monstrous hairy mushroom. Make the trip to Camden Arts Centre, NW1, from Friday to 1 May Photograph: PR
The collaborative duo presents The Stag and Hound, a far-from-sober installation of pub-minded waywardness. Artists-turned-academics through necessity, the pair use their ongoing Institute of Beasts projects to let off some irreverent steam. Pop over to Project Space Leeds by 26 March Photograph: PR
